1 // SPDX-License-Identifier: GPL-2.0-or-later
31 		return -EFAULT;  in snd_ctl_elem_list_compat()
33 	if (get_user(ptr, &data32->pids))  in snd_ctl_elem_list_compat()
34 		return -EFAULT;  in snd_ctl_elem_list_compat()
41 		return -EFAULT;  in snd_ctl_elem_list_compat()
82 	struct snd_card *card = ctl->card;  in snd_ctl_elem_info_compat()
88 		return -ENOMEM;  in snd_ctl_elem_info_compat()
91 	if (copy_from_user(&data->id, &data32->id, sizeof(data->id)))  in snd_ctl_elem_info_compat()
92 		return -EFAULT;  in snd_ctl_elem_info_compat()
96 	if (get_user(data->value.enumerated.item, &data32->value.enumerated.item))  in snd_ctl_elem_info_compat()
97 		return -EFAULT;  in snd_ctl_elem_info_compat()
108 	if (copy_to_user(&data32->id, &data->id, sizeof(data->id)) ||  in snd_ctl_elem_info_compat()
109 	    copy_to_user(&data32->type, &data->type, 3 * sizeof(u32)))  in snd_ctl_elem_info_compat()
110 		return -EFAULT;  in snd_ctl_elem_info_compat()
111 	if (put_user(data->owner, &data32->owner))  in snd_ctl_elem_info_compat()
112 		return -EFAULT;  in snd_ctl_elem_info_compat()
113 	switch (data->type) {  in snd_ctl_elem_info_compat()
116 		if (put_user(data->value.integer.min, &data32->value.integer.min) ||  in snd_ctl_elem_info_compat()
117 		    put_user(data->value.integer.max, &data32->value.integer.max) ||  in snd_ctl_elem_info_compat()
118 		    put_user(data->value.integer.step, &data32->value.integer.step))  in snd_ctl_elem_info_compat()
119 			return -EFAULT;  in snd_ctl_elem_info_compat()
122 		if (copy_to_user(&data32->value.integer64,  in snd_ctl_elem_info_compat()
123 				 &data->value.integer64,  in snd_ctl_elem_info_compat()
124 				 sizeof(data->value.integer64)))  in snd_ctl_elem_info_compat()
125 			return -EFAULT;  in snd_ctl_elem_info_compat()
128 		if (copy_to_user(&data32->value.enumerated,  in snd_ctl_elem_info_compat()
129 				 &data->value.enumerated,  in snd_ctl_elem_info_compat()
130 				 sizeof(data->value.enumerated)))  in snd_ctl_elem_info_compat()
131 			return -EFAULT;  in snd_ctl_elem_info_compat()
142 	unsigned int indirect;	/* bit-field causes misalignment */
154 /* x32 has a different alignment for 64bit values from ia32 */
157 	unsigned int indirect;	/* bit-field causes misalignment */
175 	guard(rwsem_read)(&card->controls_rwsem);  in get_ctl_type()
178 		return -ENOENT;  in get_ctl_type()
181 		return -ENOMEM;  in get_ctl_type()
182 	info->id = *id;  in get_ctl_type()
183 	err = kctl->info(kctl, info);  in get_ctl_type()
185 		err = info->type;  in get_ctl_type()
186 		*countp = info->count;  in get_ctl_type()
203 		return -1;  in get_elem_size()
218 	if (copy_from_user(&data->id, &data32->id, sizeof(data->id)))  in copy_ctl_value_from_user()
219 		return -EFAULT;  in copy_ctl_value_from_user()
220 	if (get_user(indirect, &data32->indirect))  in copy_ctl_value_from_user()
221 		return -EFAULT;  in copy_ctl_value_from_user()
223 		return -EINVAL;  in copy_ctl_value_from_user()
224 	type = get_ctl_type(card, &data->id, &count);  in copy_ctl_value_from_user()
234 				return -EFAULT;  in copy_ctl_value_from_user()
235 			data->value.integer.value[i] = val;  in copy_ctl_value_from_user()
240 			dev_err(card->dev, "snd_ioctl32_ctl_elem_value: unknown type %d\n", type);  in copy_ctl_value_from_user()
241 			return -EINVAL;  in copy_ctl_value_from_user()
243 		if (copy_from_user(data->value.bytes.data, valuep, size))  in copy_ctl_value_from_user()
244 			return -EFAULT;  in copy_ctl_value_from_user()
266 			val = data->value.integer.value[i];  in copy_ctl_value_to_user()
268 				return -EFAULT;  in copy_ctl_value_to_user()
272 		if (copy_to_user(valuep, data->value.bytes.data, size))  in copy_ctl_value_to_user()
273 			return -EFAULT;  in copy_ctl_value_to_user()
275 	if (copy_to_user(&data32->id, &data->id, sizeof(data32->id)))  in copy_ctl_value_to_user()
276 		return -EFAULT;  in copy_ctl_value_to_user()
288 		return -ENOMEM;  in __ctl_elem_read_user()
318 	struct snd_card *card = file->card;  in __ctl_elem_write_user()
323 		return -ENOMEM;  in __ctl_elem_write_user()
339 	struct snd_card *card = file->card;  in ctl_elem_write_user()
353 	return ctl_elem_read_user(card, data32, &data32->value);  in snd_ctl_elem_read_user_compat()
359 	return ctl_elem_write_user(file, data32, &data32->value);  in snd_ctl_elem_write_user_compat()
366 	return ctl_elem_read_user(card, data32, &data32->value);  in snd_ctl_elem_read_user_x32()
372 	return ctl_elem_write_user(file, data32, &data32->value);  in snd_ctl_elem_write_user_x32()
376 /* add or replace a user control */
385 		return -ENOMEM;  in snd_ctl_elem_add_compat()
388 	if (copy_from_user(&data->id, &data32->id, sizeof(data->id)) ||  in snd_ctl_elem_add_compat()
389 	    copy_from_user(&data->type, &data32->type, 3 * sizeof(u32)))  in snd_ctl_elem_add_compat()
390 		return -EFAULT;  in snd_ctl_elem_add_compat()
391 	if (get_user(data->owner, &data32->owner))  in snd_ctl_elem_add_compat()
392 		return -EFAULT;  in snd_ctl_elem_add_compat()
393 	switch (data->type) {  in snd_ctl_elem_add_compat()
396 		if (get_user(data->value.integer.min, &data32->value.integer.min) ||  in snd_ctl_elem_add_compat()
397 		    get_user(data->value.integer.max, &data32->value.integer.max) ||  in snd_ctl_elem_add_compat()
398 		    get_user(data->value.integer.step, &data32->value.integer.step))  in snd_ctl_elem_add_compat()
399 			return -EFAULT;  in snd_ctl_elem_add_compat()
402 		if (copy_from_user(&data->value.integer64,  in snd_ctl_elem_add_compat()
403 				   &data32->value.integer64,  in snd_ctl_elem_add_compat()
404 				   sizeof(data->value.integer64)))  in snd_ctl_elem_add_compat()
405 			return -EFAULT;  in snd_ctl_elem_add_compat()
408 		if (copy_from_user(&data->value.enumerated,  in snd_ctl_elem_add_compat()
409 				   &data32->value.enumerated,  in snd_ctl_elem_add_compat()
410 				   sizeof(data->value.enumerated)))  in snd_ctl_elem_add_compat()
411 			return -EFAULT;  in snd_ctl_elem_add_compat()
412 		data->value.enumerated.names_ptr =  in snd_ctl_elem_add_compat()
413 			(uintptr_t)compat_ptr(data->value.enumerated.names_ptr);  in snd_ctl_elem_add_compat()
441 	ctl = file->private_data;  in snd_ctl_ioctl_compat()
442 	if (snd_BUG_ON(!ctl || !ctl->card))  in snd_ctl_ioctl_compat()
443 		return -ENXIO;  in snd_ctl_ioctl_compat()
459 		return snd_ctl_elem_list_compat(ctl->card, argp);  in snd_ctl_ioctl_compat()
463 		return snd_ctl_elem_read_user_compat(ctl->card, argp);  in snd_ctl_ioctl_compat()
472 		return snd_ctl_elem_read_user_x32(ctl->card, argp);  in snd_ctl_ioctl_compat()
480 		if (p->fioctl) {  in snd_ctl_ioctl_compat()
481 			err = p->fioctl(ctl->card, ctl, cmd, arg);  in snd_ctl_ioctl_compat()
482 			if (err != -ENOIOCTLCMD)  in snd_ctl_ioctl_compat()
486 	return -ENOIOCTLCMD;  in snd_ctl_ioctl_compat()